The utility model relates to the technical field of
metal processing, in particular to a pre-
electroplating derusting pretreatment mechanism for
metal surface treatment, which comprises a
machine body, a loading mechanism is arranged on the
machine body and is used for loading workpieces, the loading mechanism comprises a main body
assembly, a plurality of pre-
electroplating mechanisms and a plurality of pre-
electroplating mechanisms, the main body
assembly comprises a basket arranged on the
machine body, and a bottom plate is fixed at the lower end of the basket; the supporting
assembly comprises a storage groove formed in the bottom plate, and a plurality of through holes distributed in an array mode are formed in the storage groove; the adjusting assembly comprises cylinder bases fixed to the four corners of the bottom of the storage groove, threaded rotary knobs are rotationally installed on the outer walls of the lower ends of the cylinder bases, and threaded rods are slidably installed in the cylinder bases in a penetrating mode; by means of the adjustable interval design and fluid channel optimization, flexible
adaptation of workpiece loading and efficient circulation of cleaning liquid are achieved, the treatment adaptability of workpieces of different sizes is improved, it is ensured that the cleaning effect is uniform and stable, the problems of traditional fixed loading and liquid retention are effectively solved, and the pretreatment efficiency and quality are remarkably improved.